Meta Software Engineer System Design Round Interview Questions
Meta's E5+ system design round is a single 45-minute interview evaluating problem navigation, solution design, technical excellence, and technical communication — split between System Design (infra-focused) and Product Architecture (fullstack-focused) tracks.
What to Expect: Meta System Design Round
| Round | Format | Focus Area | Typical Duration |
|---|---|---|---|
| Online assessment | Async coding test | Baseline coding screen | Varies |
| Technical phone screen | Video call | Coding fundamentals | 45 min |
| System Design or Product Architecture | Live 1:1 | Scalability, tradeoffs, API/data design | 45 min |
| AI-enabled coding round | Live 1:1 with AI assistant access | Coding with tooling | 60 min |
| Behavioral round | Live 1:1 | Culture and leadership fit | 45 min |
Frequently Asked Questions
What is the difference between System Design and Product Architecture tracks? System Design targets backend/infrastructure roles and digs into sharding, caching, and concurrency; Product Architecture targets fullstack roles and focuses on API design and user workflows.
What are commonly asked system design prompts? "Design a Ticket Booking System" and "Design a Top-K System" are among the most frequently reported prompts at the E5+ level.
What four competencies get scored? Problem navigation, solution design, technical excellence, and technical communication — all weighted equally.
Does the round change at higher levels (E6+)? Yes — some E6-track loops report two system design rounds instead of one, reflecting higher scope expectations.
Is there an AI-assisted coding round now? Yes, recent 2025-2026 loops report a distinct AI-enabled coding round where candidates use an AI assistant during a 60-minute session.
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